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kwin/kcmkwin/kwinrules/main.cpp
Martin Flöser 0b28abeb01 Port window specific rules dialog to DBus 
Summary:
The dialog invoked through user actions menu takes the internal uuid as
command line argument which allows to query the required information
from KWin instead of using X11.

This allows to enable the system for Wayland windows.

In order to replace the usage of ClientMachine in the rules dialog the
dbus interface is extended by a value whether the window is on the
localhost. This is exposed through a virtual method on toplevel which is
overridden in ShellClient and there always returning true.

Test Plan: Run a nested Wayland and opened the dialog on a wayland window

Reviewers: #kwin

Subscribers: kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D17750
2018-12-31 07:58:12 +01:00

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/*
* Copyright (c) 2004 Lubos Lunak <l.lunak@kde.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <QCommandLineParser>
#include <QApplication>
#include <kconfig.h>
#include <KLocalizedString>
#include <kwindowsystem.h>
#include "ruleswidget.h"
#include "../../rules.h"
#include <QByteArray>
#include <QDBusConnection>
#include <QDBusMessage>
#include <QDBusPendingCallWatcher>
#include <QDBusPendingReply>
#include <QUuid>
Q_DECLARE_METATYPE(NET::WindowType)
namespace KWin
{
static void loadRules(QList< Rules* >& rules)
{
KConfig _cfg("kwinrulesrc", KConfig::NoGlobals);
KConfigGroup cfg(&_cfg, "General");
int count = cfg.readEntry("count", 0);
for (int i = 1;
i <= count;
++i) {
cfg = KConfigGroup(&_cfg, QString::number(i));
Rules* rule = new Rules(cfg);
rules.append(rule);
}
}
static void saveRules(const QList< Rules* >& rules)
{
KConfig cfg("kwinrulesrc", KConfig::NoGlobals);
QStringList groups = cfg.groupList();
for (QStringList::ConstIterator it = groups.constBegin();
it != groups.constEnd();
++it)
cfg.deleteGroup(*it);
cfg.group("General").writeEntry("count", rules.count());
int i = 1;
for (QList< Rules* >::ConstIterator it = rules.constBegin();
it != rules.constEnd();
++it) {
KConfigGroup cg(&cfg, QString::number(i));
(*it)->write(cg);
++i;
}
}
static Rules* findRule(const QList< Rules* >& rules, const QVariantMap &data, bool whole_app)
{
QByteArray wmclass_class = data.value("resourceClass").toByteArray().toLower();
QByteArray wmclass_name = data.value("resourceName").toByteArray().toLower();
QByteArray role = data.value("role").toByteArray().toLower();
NET::WindowType type = data.value("type").value<NET::WindowType>();
QString title = data.value("caption").toString();
QByteArray machine = data.value("clientMachine").toByteArray();
Rules* best_match = nullptr;
int match_quality = 0;
for (QList< Rules* >::ConstIterator it = rules.constBegin();
it != rules.constEnd();
++it) {
// try to find an exact match, i.e. not a generic rule
Rules* rule = *it;
int quality = 0;
bool generic = true;
if (rule->wmclassmatch != Rules::ExactMatch)
continue; // too generic
if (!rule->matchWMClass(wmclass_class, wmclass_name))
continue;
// from now on, it matches the app - now try to match for a specific window
if (rule->wmclasscomplete) {
quality += 1;
generic = false; // this can be considered specific enough (old X apps)
}
if (!whole_app) {
if (rule->windowrolematch != Rules::UnimportantMatch) {
quality += rule->windowrolematch == Rules::ExactMatch ? 5 : 1;
generic = false;
}
if (rule->titlematch != Rules::UnimportantMatch) {
quality += rule->titlematch == Rules::ExactMatch ? 3 : 1;
generic = false;
}
if (rule->types != NET::AllTypesMask) {
int bits = 0;
for (unsigned int bit = 1;
bit < 1U << 31;
bit <<= 1)
if (rule->types & bit)
++bits;
if (bits == 1)
quality += 2;
}
if (generic) // ignore generic rules, use only the ones that are for this window
continue;
} else {
if (rule->types == NET::AllTypesMask)
quality += 2;
}
if (!rule->matchType(type)
|| !rule->matchRole(role)
|| !rule->matchTitle(title)
|| !rule->matchClientMachine(machine, data.value("localhost").toBool()))
continue;
if (quality > match_quality) {
best_match = rule;
match_quality = quality;
}
}
if (best_match != nullptr)
return best_match;
Rules* ret = new Rules;
if (whole_app) {
ret->description = i18n("Application settings for %1", QString::fromLatin1(wmclass_class));
// TODO maybe exclude some types? If yes, then also exclude them above
// when searching.
ret->types = NET::AllTypesMask;
ret->titlematch = Rules::UnimportantMatch;
ret->clientmachine = machine; // set, but make unimportant
ret->clientmachinematch = Rules::UnimportantMatch;
ret->windowrolematch = Rules::UnimportantMatch;
if (wmclass_name == wmclass_class) {
ret->wmclasscomplete = false;
ret->wmclass = wmclass_class;
ret->wmclassmatch = Rules::ExactMatch;
} else {
// WM_CLASS components differ - perhaps the app got -name argument
ret->wmclasscomplete = true;
ret->wmclass = wmclass_name + ' ' + wmclass_class;
ret->wmclassmatch = Rules::ExactMatch;
}
return ret;
}
ret->description = i18n("Window settings for %1", QString::fromLatin1(wmclass_class));
if (type == NET::Unknown)
ret->types = NET::NormalMask;
else
ret->types = NET::WindowTypeMask( 1 << type); // convert type to its mask
ret->title = title; // set, but make unimportant
ret->titlematch = Rules::UnimportantMatch;
ret->clientmachine = machine; // set, but make unimportant
ret->clientmachinematch = Rules::UnimportantMatch;
if (!role.isEmpty()
&& role != "unknown" && role != "unnamed") { // Qt sets this if not specified
ret->windowrole = role;
ret->windowrolematch = Rules::ExactMatch;
if (wmclass_name == wmclass_class) {
ret->wmclasscomplete = false;
ret->wmclass = wmclass_class;
ret->wmclassmatch = Rules::ExactMatch;
} else {
// WM_CLASS components differ - perhaps the app got -name argument
ret->wmclasscomplete = true;
ret->wmclass = wmclass_name + ' ' + wmclass_class;
ret->wmclassmatch = Rules::ExactMatch;
}
} else { // no role set
if (wmclass_name != wmclass_class) {
ret->wmclasscomplete = true;
ret->wmclass = wmclass_name + ' ' + wmclass_class;
ret->wmclassmatch = Rules::ExactMatch;
} else {
// This is a window that has no role set, and both components of WM_CLASS
// match (possibly only differing in case), which most likely means either
// the application doesn't give a damn about distinguishing its various
// windows, or it's an app that uses role for that, but this window
// lacks it for some reason. Use non-complete WM_CLASS matching, also
// include window title in the matching, and pray it causes many more positive
// matches than negative matches.
ret->titlematch = Rules::ExactMatch;
ret->wmclasscomplete = false;
ret->wmclass = wmclass_class;
ret->wmclassmatch = Rules::ExactMatch;
}
}
return ret;
}
static void edit(const QVariantMap &data, bool whole_app)
{
QList< Rules* > rules;
loadRules(rules);
Rules* orig_rule = findRule(rules, data, whole_app);
RulesDialog dlg;
if (whole_app)
dlg.setWindowTitle(i18nc("Window caption for the application wide rules dialog", "Edit Application-Specific Settings"));
// dlg.edit() creates new Rules instance if edited
Rules* edited_rule = dlg.edit(orig_rule, data, true);
if (edited_rule == nullptr || edited_rule->isEmpty()) {
rules.removeAll(orig_rule);
delete orig_rule;
if (orig_rule != edited_rule)
delete edited_rule;
} else if (edited_rule != orig_rule) {
int pos = rules.indexOf(orig_rule);
if (pos != -1)
rules[ pos ] = edited_rule;
else
rules.prepend(edited_rule);
delete orig_rule;
}
saveRules(rules);
// Send signal to all kwin instances
QDBusMessage message =
QDBusMessage::createSignal("/KWin", "org.kde.KWin", "reloadConfig");
QDBusConnection::sessionBus().send(message);
qApp->quit();
}
} // namespace
extern "C"
KWIN_EXPORT int kdemain(int argc, char* argv[])
{
QApplication app(argc, argv);
app.setApplicationDisplayName(i18n("KWin"));
app.setApplicationName("kwin_rules_dialog");
app.setApplicationVersion("1.0");
bool whole_app = false;
QUuid uuid;
{
QCommandLineParser parser;
parser.setApplicationDescription(i18n("KWin helper utility"));
parser.addOption(QCommandLineOption("uuid", i18n("KWin id of the window for special window settings."), "uuid"));
parser.addOption(QCommandLineOption("whole-app", i18n("Whether the settings should affect all windows of the application.")));
parser.process(app);
uuid = QUuid::fromString(parser.value("uuid"));
whole_app = parser.isSet("whole-app");
}
if (uuid.isNull()) {
printf("%s\n", qPrintable(i18n("This helper utility is not supposed to be called directly.")));
return 1;
}
QDBusMessage message = QDBusMessage::createMethodCall(QStringLiteral("org.kde.KWin"),
QStringLiteral("/KWin"),
QStringLiteral("org.kde.KWin"),
QStringLiteral("getWindowInfo"));
message.setArguments({uuid.toString()});
QDBusPendingReply<QVariantMap> async = QDBusConnection::sessionBus().asyncCall(message);
QDBusPendingCallWatcher *callWatcher = new QDBusPendingCallWatcher(async, &app);
QObject::connect(callWatcher, &QDBusPendingCallWatcher::finished, &app,
[&whole_app] (QDBusPendingCallWatcher *self) {
QDBusPendingReply<QVariantMap> reply = *self;
self->deleteLater();
if (!reply.isValid() || reply.value().isEmpty()) {
qApp->quit();
return;
}
KWin::edit(reply.value(), whole_app);
}
);
return app.exec();
}
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